I would have preferred to have a nice manufacturer booklet. The packaging was so secure that it took me some time to actually get into the box.

So, I decided to keep it as is! It works pretty much as advertised. Also the RS180's fit on her head better than the RS120s which were always loose (and would fall off when she looked down quickly). In my opinion The RS180s are worth the extra $. I bought and returned two other pairs of wireless headphones in the sub-$200 price range before springing for these, and simply put they are worth the extra money. There's no interference, the sound quality is excellent throughout the range and the hiss that plagues most other wireless headphones doesn't exist. Very pleased with the RS180 and well worth the additional cost. These headphones are great.

These are open phones and provide absolutely no isolation from ambient noise. If you want sound isolation, consider the Sennheiser RS 170 closed wireless phones; also sold on Amazon.

I bought it as a birthday present for my husband. It came nicely packaged. I have not heard any interference or distortion due to it being wireless. These are the best wireless headphones ever.

Initial charge time is around 16 hours but I couldn't wait so I used them after 12 hours. Five hours later, I went to bed but the sound was still great.

You have to be careful placing the headphones on the cradle, to insure the contacts engage for charging. However, there's an amber LED that lights while the headphone set is charging, so it's obvious when contact has been made. With the 130's, which I have used for years, this does not exist. If I'm wearing the 130's and the TV is on, I only hear the sound from the 130's. I purchased these wireless headphones for quiet listening late at night so I would not disturb other people. I have used the wired Sennheiser HD 414 headphones for the last 20+ years and have had zero problems with them.